The use of lac dye goes back to ancient times.

The lac gene and its derivatives are amenable to use as a reporter gene in a number of bacterial-based selection techniques such as two hybrid analysis, in which the successful binding of a transcriptional activator to a specific promoter sequence must be determined.

He could use your clothes for a costume and a heavy veil for a mask.

As she was rather tired this evening, her simple `` Thank you for the use of your bath '' -- when she sat down opposite him -- spoken in a low voice, came across with coolnesses of intelligence and control.

he had no use any longer for exact time, even had the watch been running.

This is the rhetoric of righteousness the beatniks use in defending their way of life, their search for wholeness, though their actual existence fails to reach these `` religious '' heights.

After casting about for a way of describing this spirit, we decided that it would be better to use Mr. Lyford's introduction as an illustration.

Billy Koch, who had once worked for Wright as a chauffeur, gave a deposition for Miriam's use that he had seen Olgivanna living at Taliesin.

Steele apparently professed his sentiments in this book too openly and honestly for his own good, since the government was soon to use it as evidence against him in his trial before the House.

I use this term to mean three things: a search for the human significance of an event or state of affairs, a tendency to look at wholes rather than parts, and a tendency to respond to these events and wholes with feeling.

Of course, if you don't make the American a success, Hearst will have no further use for you ''.

To Serenissimus such tribes as the Cossacks of the Don or those ex-bandits the Zaporogian Cossacks ( in whose islands along the lower Dnieper the Polish novelist Sienkiewicz would one day place With Fire And Sword ) were just elements for enforced resettlement in, say, Bessarabia, where, as `` the faithful of the Black Sea borders '', he could use their presence as bargaining points in the Czarina's territorial claims against Turkey.

for if this can be proved we shall surely be the gainers -- I mean, if there is a use in poetry as well as a delight ''.

It is even true that some among them use the sheer fact of conformity -- `` everyone does it '' -- as a criterion for conduct.

A credulousness, a distaste for documentation, an uncritical reliance on contemporary accounts, and a proneness to assume a theory as true before adequate proof was provided were all evidences of his failure to comprehend the use of the scientific method or to evaluate the responsibilities of the historian to his reading public.

It may be thought unfortunate that he was called on entirely by accident to perform, if again we may trust the opening of the oratio, for it marks the beginning for us of his use of his peculiar form of witty word play that even in this Latin banter has in it the unmistakable element of viciousness and an almost sadistic delight in verbally tormenting an adversary.

A nuclear pacifier of these dimensions -- roughly some six and a half times bigger than anything the United States has triggered experimentally -- would certainly produce a bigger bang, and, just for kicks, Khrushchev might use it to propel the seminar of the house of delegates from St. Louis to the moon, where there wouldn't even be any beer to drink.

The only real problem is to devise a plan whereby the owners of the above-water land can develop their property without the public losing its underwater land and the right to its development for public use and enjoyment.

And then there is St. Louis county, where the Democratic leadership has shown little appreciation of the need for sound zoning, of the important relationship between proper land use and economic growth.

This immature use of crayons may suggest that she is a little immature for the first grade.

One effect of the spirited give-and-take of these discussions was to focus attention on practical applications and the necessity of being armed with the facts: knowledge of the destructive force of even the tiniest `` tactical '' atomic weapon would have a bearing on judgments as to the advisability of its use -- to defend Berlin, for example ; ;

The Minutemen were instructed in the use of terrain for concealment.

There would be great need soon for his skill as surgeon, but somehow he had not planned to use his knowledge merely for war.

Similarly, a gold reflective layer does not guarantee use of phthalocyanine dye.

" Cold " reactive dyes, such as Procion MX, Cibacron F, and Drimarene K, are very easy to use because the dye can be applied at room temperature.

Their main use is to dye polyester but they can also be used to dye nylon, cellulose triacetate, and acrylic fibres.

One other class that describes the role of dyes, rather than their mode of use, is the food dye.

In fact, a protein or other component can be " labelled " with an extrinsic fluorophore, a fluorescent dye that can be a small molecule, protein, or quantum dot, finding a large use in many biological applications.

Selenium disulfide has been use in shampoo as an anti-dandruff agent, an inhibitor in polymer chemistry, a glass dye, and a reducing agent in fireworks.

The following morning, three young coconuts and three old soma nuts are offered by a priestess with prayer, after which the dye which has settled down in the water is collected, baked into cakes in coconut molds, wrapped in banana leaves, and hung up in the huts till required for use.

If the DNA was resolved by gel electrophoresis, the DNA can be visualized either by silver staining ( low sensitivity, safe, inexpensive ), or an intercalating dye such as ethidium bromide ( fairly sensitive, moderate health risks, inexpensive ), or as most modern forensics labs use, fluorescent dyes ( highly sensitive, safe, expensive ).

The analogue optical track technology has also changed: in the early years of the 21st century distributors changed to using cyan dye optical soundtracks instead of applicated tracks, which use environmentally unfriendly chemicals to retain a silver ( black-and-white ) soundtrack.

In the process of digitizing old film into a modern digital movie format, the faded film can sometimes be restored to full color with the use of digital color enhancement methods that amplify the faded dye colors, but do not amplify the red dyes.

Production of Tyrian Purple for use as a fabric dye began as early as 1200 BCE by the Phoenicians, and was continued by the Greeks and Romans until 1453 CE, with the fall of Constantinople.

Tablets found in the Mesopotamian city of Nuzi use the term Kinahnu (" Canaan ") as a synonym for red or purple dye, laboriously produced by the Kassite rulers of Babylon from murex shells as early as 1600 BC, and on the Mediterranean coast by the Phoenicians from a byproduct of glassmaking.

:# to ensure an ample supply of alcohol and promote its use in scientific research and in the development of fuel, dye and other lawful industries and practices, such as religious rituals.

Denim was traditionally colored blue with indigo dye to make blue " jeans ", though " jean " then denoted a different, lighter cotton textile ; the contemporary use of jean comes from the French word for Genoa, Italy ( Gênes ), where the first denim trousers were made.

Having invented the dye, Perkin was still faced with the problems of raising the capital for producing it, manufacturing it cheaply, adapting it for use in dyeing cotton, gaining acceptance for it among commercial dyers, and creating public demand for it.

These are not to be confused with dye sublimation heat transfer imprinting printers, which use special inks to create transfers designed to be imprinted on polyester items.

Most dye-sublimation printers use CMYO ( Cyan Magenta Yellow Overcoating ) colors, which differs from the more recognized CMYK colors in that the black dye is eliminated in favour of a clear overcoating.

Inkjet printers can also suffer from ' dye wastage ' as the ink cartridges are prone to drying up with low usage ( without ' heavy use ', the cartridge nozzles can become clogged with dried ink ).

The most popular one is aqueous dye sublimation ink for use in both desktop and large format printers.

Depending on the light, or perhaps the use of dye, his hair is red, blonde, or light brown.

The Sumptuariae Leges of Ancient Rome were various laws passed to prevent inordinate expense ( sumptus ) in banquets and dress, such as the use of expensive Tyrian purple dye.

Ilfochrome materials use the dye destruction process.